Yoke and draw-bar connection.



S. BI HASELTINE.

YoKE AND DRAW BAR coNNEcloN,

APPLICATION FILED APR.27\ 1918.

Patented Dee. 3,1918.

' INVENTOR.

f' I J4 3.57 BY d ATTORNEY/ D sfrA'rEs PATENT oEEIcE.

sfrAcY B. HASELTINE, or CHICAGO, ILLINOIS, assIGNon To WILLIAM H. MINER,or cHAzY, NEW YORK.

tion.

YOKE AND DRAW-BAR CONNECTION.

To aZ'Ziwhom it may concern.'

Be it known that I, STAor B. HAsE'L'rrNE, a citizen of the UnitedStates, residing at -Chicago, in the county ofA Cook and State ofIllinois, have invented a certam new and useful Improvement in Yoke-andDraw-Bar Connections, ofv which the following i s a full, clear,concise, and exact description, reference being had to the accompanyingdrawings, forming a part of this specifica- This invention relates toimprovements in yoke and draw bar connections.'

One object of the invention i a detachable draw bar and yoke connectionwherein may be remployed old oke stra s of the riveted type without modication, t e arrangement being such that all the elements of theconnection are held tightly in place and all'danger of'loosenessavoided.

The invention furthermore consists in the improvement in the part-s anddevices and in the novel combinations of the parts and devices hereinshown, described and made the subject of claims. I

In the drawing forming a part of this specification, Figure 1 is a sideelevation of a portion of a draw bar and yoke showing my improvements inconnection therewith. Fig.

2 is a top plan view of the structure illus-.

trated in Fig. 1. Fig. 3 is a vertical, sectional view, taken on theline 3 3 of Fig. 1; Fig. 4 is a detail perspective of the wedge block`employed with the improvements. And Fig. 5 is a view similar to Fig. 1,but

Aillustrating a. different embodiment of the invention.

Referring first'to the construction shown in Figs. 1 to 4 inclusive, 10denotes a standard draw bar provided with the usual rivet receivingholes 11 and 12 and upperand v'lower shoulders 13 and 14. The yokedesigrangedV for alinement with the rivet holes" 11 and 12 of the drawbar.

The o'iward ends of theA yoke arms are. shown inturned, as indicated at17T-17, to engage the draw bar shoulders 13I and 14..

In order to provide a detachable connection for the draw bar and vokeWithout modification of either,vl I employ thejollowing arrangement: Apair of upper rela-A Specicationof Letters Patent.

s to provide Patented Dee. '3, i918;

Application ledrApril 2.7, 1918. Serial No. 231,061.Y

tively short pins 18-18 are inserted through the alined rivet holes 11and 15. A. corresponding pali' of pins 19 are inserted upwardly into therivet holes 12 and 16. All of said pins 18 and 19 are provided withheads .20-20 which remain projecting beyond the adjacent surfaces of theyoke arms.

To hold the pins in proper position and prevent spreading of the yokearms, I einploy a band B having an upper horizontal wall 21, side walls22-22 and an inclined or beveled lower- Wall 23. The upper wall 21 isrecessed on its 'under side, as indicated at 24e to accommodate theheads 2O of the upper set of pins 18, the recess 24, however, beingshallow enough so as to prevent the inner face of the .wa-ll 21 comingin direct contact i with the upper arm ofthe yoke. Coperable with theband B is a 'wedge block C. Said wedge block C is provided on its upperface with a longitudinally extending groove 25 arranged to accommodatethe heads 20 of the lower pins 19 as the wedgeblo'ck C Y is shiftedlengthwise of the yoke.l The block C is inclined or beveled on its underface, as indicated at 26, so as to coperate with the inclined lower,wall 23 of the band B. To

tain the arms of the yoke tightly in engage# ment with the'draw bar. Inother words, looseness or rattling of any of thelparts is positivelyeliminated and any variations in manufacture or wear 4which may occurcan be readily compensated for by adjusting the A.wedge block C.

In the construction illustrated in Fig. 5, the arrangement of draw bar,-yokc and headed pins is the same as in the construc tion illustrated inthe other figures. In the Fig. 5 construction, however, instead ofrecessing the under face of the upper wall of the band B", I employ aplate 31 which is,

centrally recessed, as `.indicated at 32,to` accommodate the'headsof thepins, the ends of the plates 31 being upturn'ed, asindicated at 33, toengage the edges of the band B'.

. The'lband B in this construction is made passing through the block C.as clearl)` de- SCi-ined in Fig. Th(` band o'tl the construcvtion lshownin Fig. 5 is sonic-what cheaper to nmnutacture than that shown in Fig. 1but the principlev employed in both constructions is the same. It isevident that in both ot'the constructions as shown and described, thebands are prevented from longitudinal shiftintr bv engagement with theupper headed pins` in the one instance the engagement being direct. andin the-other instance indirect through the intermediary ot' aninterposed plate.

l claim:

l. ln a connection t'or draw bars and yokes having alined perforationsada-ptedreceive fastening means, the Combination with a pluralit)v ofelements adapted to be inserted within said perforations` of a rectan--rular single-piece band arranged to surround the draw bar, yoke, andsaid elements when the saine are assembled, said band being provided atone end with an integral inclined surface, and wedgin means coperablewith said surface an interposed between said surface and an adjacentportion ot' the yoke.

:2. The combination rwith a draw bar and lvoke having alinedperforations adapted to receive rivetsor th'e like, of a. plurality ofheaded pins extending within said'alined perforations, the headed endsof the pins projecting bevond the adjacent portions of the. volte` arectangular band Surrounding the draw bar, yoke and pins, meanscoperable with'the headed ends of said pins arranged to preventlongitudinal shifting of the band` one wall otI said band havingT aninclined surface and spaced t'roin the adja cent arm ot' the yoke, awedge Coperable with said inclined surface and interposed between thelatte' and the adjacent arm of the yoke, and means t'or drawingf saidwedge' within the band to t'oree all of the parts into tightengagement..

ln witness that I claim the Jforegoing I have hereunto subscribed myname this 13th da)v of April, 1918,

STACY B. HASELTINE.

